Can't access BIOS on W520

After reading about how awesome UEFI is, when I did a clean install of Windows 7 on my W520, I set it to to be UEFI only. Things have been great, and my Thinkpad boots up faster than I could have hoped for, but there is one problem. I can no longer access my BIOS, or any related functions, such as selecting a boot device. This has been a pretty major inconvenience, as I cannot install another OS on any other partition.

Furthermore, I am worried that, if my computer crashes or become unable, I will be unable to recover it. I cannot boot from a CD drive or a USB drive at all. If I I try to and hold the blue ThinkVantage button down during bootup, it just boots straight to Windows.